Table 2. Best neural network model features for predicting the different outcomes, determined by testing different combinations of activation functions, number of layers, and number of neurons per layer for each data set.

Outcome	First Hidden Layer		Second Hidden Layer
	Activation Function	Neurons	Activation Function	Neurons
FEV1	Sigmoid	64	Sigmoid	16
Smoking Cessation	Hard Sigmoid	64	RELU	32
Log Smoking Cessation	Sigmoid	64	Sigmoid	32